<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>京东</title>
  <style>
    * {
      margin: 0 auto;
      padding: 0;
    }
    body{
      width: 100%;
      height: 100%;
    }
    li {
      list-style: none;
      text-align: center;
    }
    img{
      background-color: pink;
      width: 80%;
    }
    .toolbar{
      position: fixed;
      bottom: 0;
      left: 0;
    }
    .toolbar ul{
      display: flex;
      width: 100%;
    }
  </style>
</head>

<body>
  <div class="toolbar">
    <ul>
      <li>
        <a href="#"><img src="./images/index.png" alt="" /></a>
      </li>
      <li>
        <a href="#"><img src="./images/classify.png" alt="" /></a>
      </li>
      <li>
        <a href="#"><img src="./images/car.png" alt="" /></a>
      </li>
      <li>
        <a href="#"><img src="./images/login.png" alt="" /></a>
      </li>
    </ul>
  </div>
</body>

</html>